Revista española de anestesiología y reanimación
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Rev Esp Anestesiol Reanim · Mar 1997
Clinical Trial[Relationship between laryngoscopy degree and intubation difficulty].
To determine the relation between difficult intubation and grade of direct laryngoscopy, as well as the factors that influence them, and prognosis. ⋯ The fact that cases of easy laryngoscopy coincide with difficult intubation suggests that, to the degree of intubation difficulty must be added extrinsic factors (individual skill, maneuvers performed, instrumentation, relaxation of the laryngeal musculature and others) that are hard to standardize and reflect when predicting an intubation by the grade of difficulty in laryngoscopy.
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Rev Esp Anestesiol Reanim · Feb 1997
Comparative Study[Electron microscopy of the lesions produced in the human dura mater by Quincke beveled and Whitacre needles].
Comparisons of Quincke needles and non traumatic "pencil point" needles in recent years have reported lower rates of post dural puncture headache using the later type. Our new understanding of the morphology of the human dura mater motivated us to study dural lesions caused by the Whitacre 25 G and Quincke 26 G needles, using scanning electron microscopy with the aim of determining whether there is an anatomic basis for the different outcomes. ⋯ Non traumatic beveled dural needles, termed "pencil point needles", only partially separate dural fibers, and lesions caused by these needles develop in a more complex way. The Quincke 26G needle produced a puncture that is morphologically different from that caused by the Whitacre 25G needle, although lesions produced by both types close more than 94% after 15 min. We believe the size of the lesion caused by these needles does not explain the difference in post dural puncture headache due to loss of spinal fluid.
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Rev Esp Anestesiol Reanim · Feb 1997
Randomized Controlled Trial Comparative Study Clinical Trial[Changes in the concentrations of catecholamines and cortisol in balanced anesthesia and total intravenous anesthesia].
To compare hormone response to stress caused by surgery performed under balanced general anesthesia and total intravenous anesthesia. ⋯ Hormone levels are significantly higher during intravenous anesthesia than during balanced anesthesia, and the difference is evident from the earliest measurement performed.